Severe valvar aortic stenosis in a child with familial hypercholesterolaemia.
D001024:Aortic Valve Stenosis / Q000000981:diagnostic imaging / Q000209:etiology*; D002675:Child, Preschool; D004452:Echocardiography; D006801:Humans; D006938:Hyperlipoproteinemia Type II / Q000150:complications*; D008297:Male